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ICSE Class 8 Answered

describe an experiment to determine the density of the material of a coin
Asked by sayoni.shreya | 07 Jun, 2020, 12:00: PM
Expert Answer
To determine the density of a coin which is heavier than water:
First, determine the mass of the coin with the help of a physical balance.
Let the mass of the coin be M.
Take a measuring cylinder which is partially filled with water and a coin tied with a string.
Measure the initial reading V1 of water in the measuring cylinder.
Now immerse the coin into the cylinder which contains water and note the reading of the new water level, i.e. V2.
From (V2-V1), we obtain the volume of the coin.
Because
Density = Mass/Volume
Density of coin = M/ (V2  - V1)
Thus, by substituting the values of M, V2 and V1, we obtain the density of the coin. 
 
Answered by Shiwani Sawant | 07 Jun, 2020, 03:46: PM

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